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400W 6.8-440V TVS Diode P4KE Series - Reliable Protection from China Suppliers and Factory
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400W 6.8-440V TVS Diode P4KE Series - Reliable Protection from China Suppliers and Factory

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Product Features

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* Powerful 400 Watts Surge Capability for reliable performance at 1ms

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* Superior clamping capability ensures optimal protection

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* Low zener impedance enhances efficiency and performance

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* Rapid response time of just 1.0ps from 0 volts to BV min, ensuring quick operation

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* Typical IR remains below 1 A for voltages above 10V, providing consistent reliability

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As a leading manufacturer in China, our factory offers high-quality surge protection devices that meet the demanding needs of various industries. Trust our suppliers for dependable solutions to safeguard your electronic components.

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    Contact us
    Product Details

    Function

    01
    1.1. Transient Voltage Clamping

    When overvoltage occurs in the circuit (e.g., lightning strikes, static electricity, inductive flyback), the TVS diode rapidly switches from a high-impedance state to a low-impedance state, clamping the voltage to a safe level (clamping voltage, Vc) and preventing downstream components from being damaged by overvoltage breakdown.

    02
    High-Current Discharge

    It provides a low-resistance path for the discharge of peak pulse current (IPP), diverting transient energy to the ground and protecting the circuit from damage caused by large transient currents.

    03
    3. Ultra-Fast Response

    With a response time of sub-nanoseconds, much faster than ordinary zener diodes, it completes voltage clamping before transient energy can cause irreversible damage to the circuit.

    04
    Automatic Recovery

    It returns to a high-impedance state once the transient disturbance subsides, allowing the circuit to resume normal operation without manual reset or replacement.

    Product Specifications

    Product Specifications Table Part 1
    Product Specifications Table Part 2

    Product Dimension

    1A 50-1000V High Efficiency Rectifier Diodes HER101-HER108 -1

    Installation method

    ⚡
    High temperature soldering guaranteed: 260℃ / 10 seconds / .375"(9.5mm) lead length, 5lbs.(2.3kg) tension

    Application

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    Consumer Electronics: Interface protection (USB, Type-C) for smartphones, tablets, laptops, and mobile hard drives.

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    Communication Interfaces: Surge protection for industrial/communication lines such as RS-485, CAN, RS-232, and Ethernet.

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    Power Circuits: Surge suppression at the input of adapters and power modules.

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    Automotive Electronics: Protection for vehicle ECUs, navigation systems, and dashcams against voltage fluctuations during startup/shutdown.

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    Industrial Control: Protection for PLCs, sensors, and motor drives against back electromotive force from inductive loads.

    Why choose us?

    1. Professional Technology and Product Performance
    Our 400W TVS diodes are designed in strict accordance with industry standards (10/1000μs/8/20μs waveforms), featuring core characteristics such as sub-nanosecond fast response, low leakage current and low junction capacitance. The clamping voltage is accurately controllable, which can provide stable and reliable transient overvoltage protection for consumer electronics, communications, automotive, industrial control and other fields. Product parameters fully meet or even exceed industry general standards, adapting to mainstream circuit voltage requirements such as 5V/12V/24V.
    2. Strict Quality Control System
    Strict incoming inspection, wafer screening, and 100% full electrical testing before shipment guarantee low failure rate and long service life.
    3. Customized Solution Capability
    We provide not only standardized products, but also customized services. According to customers' needs for circuit voltage, interface type (USB/Type-C/CAN/Ethernet, etc.) and protection level, we can customize parameters such as package form, junction capacitance and breakdown voltage of TVS diodes. At the same time, we provide complete application circuit design guidance to solve customers' protection pain points in high-speed signal and high-power circuits.
    4. Efficient Delivery and Comprehensive After-Sales Service
    We have standardized production lines and sufficient inventory, which can quickly respond to customers' needs for small-batch trial production and large-batch procurement with short delivery cycles. At the same time, we are equipped with a professional technical team to provide 7×24-hour technical support, including scheme design, selection guidance, fault diagnosis, etc., and follow up customers' product application scenarios throughout the process to ensure the effective implementation of protection schemes.
    5. Industry Experience and Reputation Accumulation
    With years of experience in the field of transient protection devices, we have provided stable 400W TVS diode products and solutions for thousands of consumer electronics, industrial control and automotive electronics enterprises, accumulating rich industry application experience. With stable product quality and high-quality services, we have established a good reputation and brand credibility in the industry.

    FAQ

    Our 400W TVS diodes have stricter parameter control and more stable performance. The peak pulse power (400W) is strictly calibrated according to 10/1000μs and 8/20μs standard waveforms, with lower leakage current and junction capacitance. They are more suitable for high-speed signal lines and high-reliability scenarios (such as automotive electronics). In addition, we have a full-process quality inspection system, which ensures that the parameters of each batch of products are consistent, avoiding the problem of unstable performance of ordinary TVS diodes.
    All our 400W TVS diodes have passed international environmental certifications such as RoHS, complying with global environmental protection requirements. Each batch of products will provide a test report to ensure that the quality meets the standards.
    For standardized 400W TVS diode models, the delivery cycle is about 15 working days. We will try our best to shorten the cycle to meet your project progress requirements.
    Yes, we provide 7×24-hour professional technical support. Our technical team can help you with product selection, application circuit design, fault diagnosis and other issues. If you encounter any problems in the process of using our 400W TVS diodes, you can contact us at any time, and we will give a solution within 24 hours to ensure the smooth progress of your project.
    Of course. We can provide free samples of 400W TVS diodes for your testing and verification. You only need to provide your specific needs (such as voltage, package), and we will send the samples to you as soon as possible. After you confirm that the samples meet your requirements, we will carry out mass production and delivery to ensure that the mass products are consistent with the samples.

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